Display screen or portion thereof with icon



FIG. 1 is a front view for a display screen or portion thereof with icon showing my new design; and,

FIG. 2 is an enlarged front view thereof.

The dash-dot-dash broken lines immediately adjacent to the solid line showing the icon define the boundary of the claimed design and form no part thereof.

All of the evenly spaced broken lines illustrate a display screen or portion thereof, and form no part of the claimed design. 

CLAIM The ornamental design for a “display screen or portion thereof with icon,” as shown and described. 